filing complaints against brokers worthwhile?

A broker tried to sell us a house, let us do inspections and had a contract sent over without letting us know it was already under contract and she was actually also representing the other buyer. She and the other buyer were trying to flip the property to us because the buyer did not actually have the money to complete the deal themselves. Once we received contract and saw this, attorneys advised... [more]

A broker tried to sell us a house, let us do inspections and had a contract sent over without letting us know it was already under contract and she was actually also representing the other buyer. She and the other buyer were trying to flip the property to us because the buyer did not actually have the money to complete the deal themselves. Once we received contract and saw this, attorneys advised the transaction was defrauding the original seller and not legal. Broker then said the seller would try to sell to us directly and get out of contract. Kept calling and asking if we would pay cash ( 6 figures ) to the other purchaser to buy them off. Finally called the sellers attorney myself and he and seller had no knowledge of any of this. Meanwhile, other purchaser eventually closed after 5 months of this for about 1/2 of market value. Is it even worth filing a complaint? Does that actually do anything? SO irritated to be strung along like this [less]